2139104497 has 2 divisors, whose sum is σ = 2139104498. Its totient is φ = 2139104496.

The previous prime is 2139104491. The next prime is 2139104537. The reversal of 2139104497 is 7944019312.

It is an a-pointer prime, because the next prime (2139104537) can be obtained adding 2139104497 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1694063281 + 445041216 = 41159^2 + 21096^2 .

It is a cyclic number.

It is not a de Polignac number, because 2139104497 - 2²³ = 2130715889 is a prime.

It is not a weakly prime, because it can be changed into another prime (2139104491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1069552248 + 1069552249.

It is an arithmetic number, because the mean of its divisors is an integer number (1069552249).

Almost surely, 2^2139104497 is an apocalyptic number.

It is an amenable number.

2139104497 is a deficient number, since it is larger than the sum of its proper divisors (1).

2139104497 is an equidigital number, since it uses as much as digits as its factorization.

2139104497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 2139104497 is about 46250.4540193932. The cubic root of 2139104497 is about 1288.4789670321.

The spelling of 2139104497 in words is "two billion, one hundred thirty-nine million, one hundred four thousand, four hundred ninety-seven".